namespace ActiveSupport
{
    public static class EvenOdd
    {
        public static bool IsOdd(this int number)
        {
            return number % 2 != 0;            
        }

        public static bool IsEven(this int number)
        {
            return number == 0 || number % 2 == 0;            
        }
    
        public static bool IsMultipleOf(this int number, int other)
        {
            return number % other == 0;            
        }
    }
}